Pump



C. L. C'O'DDING, SR.

PUMP. APPLLCAiION HLED- AUG. 3. '1920. 1,381,801. Patented June 14, 1921. v I 1 2 SHEETSSifEET 1.

ATTORNEY wrmasem C. L. CODDING, SR.

PUMP.

APPLICATION FILED Au(a.sv 1920. f I 1,381,801 I Patented June 14, 1921.

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INVENTOR 354%; ww fl WITNESS'M UNITED STATES CHARLES L. CODDING, 33., F PERTH, NEW YORK.

PUMP.

Specification of Letters Patent. Patented June 14, 1921,

Application filed August 3, 1920. Serial No. 400,952.

To all whom it may concern:

Be it known that I, Crmnnns L. CoDDINo, Sn, a citizen of the United States, residing at Perth, in the county of Fulton and State of New York, have invented new and useful Improvements in Pumps, of which the following is a specification.

The object of my present invention is the provision of a pump that is easy of operation and is possessed of large capacity due to the improved means whereby the continued rotation of a handle will be attended by reciprocation of the piston with long and even strokes of the latter.

To the attainment of the foregoing the invention consists in the improvement as hereinafter described and definitely claimed.

In the accompanying drawings, hereby made a part hereof:-

Figure 1 is a side elevation of a pump constructed in accordance with my invention.

Fig. 2 is an enlarged detail vertical section illustrative of the mechanism for converting the continuous rotary motion of the handle to reciprocating motion for the actuation of the piston.

Fig. 3 is a longitudinal section taken in the plane indicated by the line 33 of Fig. 2.

Fig. 4 is a horizontal section taken in the plane indicated by the line 44 of Fig. 2, with some parts in plan.

Fig. 5 is an enlarged broken vertical section illustrating the cylinder and the elements therein.

Fig. 6 is a side elevation of one of the ratchet disks.

Fig. 7 is a detail perspective of the shaft.

Similar numerals of reference designate corresponding parts in all of the views of the drawings.

Among other elements my novel pump comprises a hollow stand 1, provided with a base flange 2 and a spout 3. Surmounting the stand. head 4 is a casing 5. Fixed in the casing 5 are supports 6 and 7 and journaled in the supports 6 is a transverse shaft 8, the intermediate portion of which is of angular form in cross section. Mounted on the said shaft 8 are the following elements, viz., ratchet disks 9, spur gears 10 and 11 having ratchet faces opposed to the said ratchet disks, anti-friction rollers 12, and a spur drive gear 13. Supported in the uprights 7 is a shaft 14 on which is a spur gear 15, intermeshed with the gear 13. The spur gear 13 is adapted to turn with and be moved laterally on the angular portion of the shaft 8, and the plates 9 and ratchet disks 9 are preferably integral and movable with the gear 13. The spur gear 15 is fixed to and held againstlateral movement on the shaft 14. The spur gear 11 are loose on the circular portions of the shaft 8. At one end and eXteriorly of the casing 5 the shaft 8 is equipped with a handle 16 which is preferably, though not necessarily, in the form of a crank. At 17 is the rod of the pump piston, and at 18 is a head fixed on the said rod and fixed with respect to an upper head 19, rack bars 20 and 21 and guide bars 22. The rack bars 20 and 21 are intermeshed with the spur gears 10 and 11, respectively, and the guide bars 22 are arranged in engagement with the anti-friction rollers 12 so as to render easy downward and upward movements of the frame'constructed of the parts just described. The cam disks 9 are integral with plates 9 which, in turn,'are integral with the spur gear 13 and are arranged to receive a portion of the spur gear 15 between them, Fig. 4. The said spur gear 15 is of a thickness considerably less than the distance between the plates 9*, and at diametrically opposite points on onposite sides of the spur gear 15 are cam shoes 9, located adjacent to the periphery of the gear as illustrated and adapted to engage the plates 9. The rack bars 20 and 21 are arranged at opposite sides of the spur gears 10 and 11 as appears in Fig. 4. Manifestly when the frame alluded to is in its lowermost position the cam shoe 9 at the left hand side of the gear 15 meshes the left hand ratchet disk in the left hand spur gear 10, Fig. 4, following which the piston rod 17 is movedupwardly. When the said piston rod 17 reaches the extremity of its upward stroke, the cam shoe 9 on the right hand side of the gear 15 meshes the right hand ratchet disk with the right hand spur gear 11, whereupon the frame described and thepiston rod 17 fixed thereto will be moved downwardly. From this it follows that on upward movement of the piston rod 17 one of the spur gears is an idler and on the downward movement of the piston rod 17 the other spur gear is an idler. It will be noted, however, that both strokes of the piston rod 17 are long to contribute to the capacity of the pump, and that the reciprocation of the piston rod 17 will attend con-= lower end Fig. 5, the rod 17 is provided with.

a piston made up of a cage 23 and a nonreturn valve 24L therein. The said piston is movable in a cylinder 25, and the said cylinder 25 is provided at its lower end with an induction port 26, controlled by a non-return valve 27. The said non-return valve 27 and its complementary seat member 28 are preferably carried in a holder 29, arranged in the cylinder 25, and the said holder 29 also carries a supplemental nonreturn valve 30 and a seat 31 therefor. By virtue of the employment of the two valves 27 and 30 the pump is always in prime, as is desirable.

It will be apparent from the foregoing that my novel pump is easy of operation and possessedof large capacity; also,-that through the medium of my improvement the rotary motion of the handle will be converted into reciprocatory motion and will impart to the piston long down and up movements, and this in an even or regular manner and without shock and ar.

Having described my invention, what I claim and desire to secure by LettersPatent, is i 1. The combination in a pump, of supporting means, a reciprocatory piston rod, rotary actuating means mountedin the sup- I porting means, and a driving connection between said rotary actuating means and the piston rod for reciprocating the latter by r0- tation of the former; the said driving connection comprising rack bars movable with the piston rod, rotary gears intermeshed with said rack bars and loose on the rotary actuating means and having inner ratchet faces, an endwise movable spur gear keyed to the rotary actuating means and. having ratchet disks at its ends and also having spaced plates, and a spur gear of a less thickness than the width of the space between said plates, intermeshed with the firstnamed spur gear and having cam shoes at its sides to engage said plates.

, 2. The combination in a pump, of supporting means, a reciprocatory piston rod, rotary actuating means mounted in the supporting means, and a driving connection be tween said rotary actuating means and the piston rod for reciprocating the latter by rotation of the former; the said driving connection comprising rack bars movable with the piston rod, rotary gears intermeshed with said rack bars, and means whereby first one gear and then the other will be rendered idle.

3. The combination in a pump, of sup porting means, a reciprocatory piston rod, rotary actuating means mounted in the supporting means, and a driving connection between said rotary actuating means and the piston rod for reciprocating the latter by rotation of the former; the said driving connection comprising rack bars movable with the piston rod, guide bars also movable with the piston rod, anti-friction rollers complementary to said guide bars, gears intermeshed with the rack bars and having ratchet faces, ratchets opposed to the ratchet faces of the gears andmovable laterally,

means supporting said ratchets, and means whereby first one ratchet and then the other pill be engaged with the opposed ratchet ace. In testimony whereof I affix my signature.

CHARLES L. CODDING, SR. 

